Asbestos and rubber compressed sheets for seals. Measurement of dimensions.
密封用石棉和橡胶压缩薄板。尺寸的测定。
Asbestos board divided into asbestos insulation board, asbestos by rubber sheets, asbestos floor slab.
石棉板分为石棉保温板、石棉橡胶板、石棉水泥板。
Asbestos board divided into asbestos insulation board, asbestos by rubber sheets, asbestos floor slab.
石棉板分为石棉保温板、石棉橡胶板、石棉水泥板。
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